40420103 has 4 divisors (see below), whose sum is σ = 40596840. Its totient is φ = 40243368.

The previous prime is 40420097. The next prime is 40420111. The reversal of 40420103 is 30102404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40420103 - 2¹⁰ = 40419079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40420123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88025 + ... + 88482.

It is an arithmetic number, because the mean of its divisors is an integer number (10149210).

Almost surely, 2^40420103 is an apocalyptic number.

40420103 is a deficient number, since it is larger than the sum of its proper divisors (176737).

40420103 is a wasteful number, since it uses less digits than its factorization.

40420103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176736.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 40420103 is about 6357.6806305444. The cubic root of 40420103 is about 343.1882988342.

Adding to 40420103 its reverse (30102404), we get a palindrome (70522507).

The spelling of 40420103 in words is "forty million, four hundred twenty thousand, one hundred three".